I'm not. I used to do that on iphone, but no no need to unlock anymore. A split second glance tells me all I need to know and it's right back in the pocket.
And OBVIOUSLY the notification light is a useful feature. Anyone who claims it isn't is lying. Now, such a person might not actually use this useful feature -- just as some never use the useful vibration or useful ringtone features -- but it is certainly useful. To say it isn't a useful feature is not an "opinion", it's idiocy.